Aspirated Weather Shields

Talk about all things related to personal weather stations including getting help.

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SardisBCwxman
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Aspirated Weather Shields

Postby SardisBCwxman » Sun Jul 27, 2014 10:44 am

For any of you electronic wizards out there how can you make a solar aspirated fan in a weather shield run continuous? right now mine only run when the sun is shining on the solar panels.
All l want for Christmas is a tin of sardines

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Abby_wx
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Re: Aspirated Weather Shields

Postby Abby_wx » Sun Jul 27, 2014 12:00 pm

Can you access the wires that lead to the fan?

The easiest option would be to run DC power directly to the fan, bypassing the solar panel completely. Make sure you check the fan for the correct voltage (it's probably quite a low voltage -- 2v to 4v most likely). You can pick up DC adapters in various voltages at any thrift store. You'll probably also need some electrical wire of a similar gauge to whatever's attached to the adapter (speaker wire works fine). Once you have it wired up make sure to connect to a GFCI outlet (available at Home Depot).

The more technical option would be to buy a larger solar panel and a battery with enough capacity to run for many hours. With a large enough battery you could probably run the fan for several days without sunlight, and a large solar panel will even charge the battery on overcast days.
"It's not logical... it's meteorological."

Near Hwy 1 McCallum exit; elevation 55 m (180 ft).
https://www.wunderground.com/personal-w ... =IBCABBOT1

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Glacier
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Re: Aspirated Weather Shields

Postby Glacier » Sun Jul 27, 2014 3:42 pm

Maybe your solution is as simple as buying a new battery. My Davis pro2plus runs 24 hours a day even when there hasn't been any sunshine in a week. Solar panels still charge on cloudy days.

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Abby_wx
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Re: Aspirated Weather Shields

Postby Abby_wx » Mon Jul 28, 2014 12:35 am

I don't believe the Acurite system includes a battery with the FARS, and depending on the size of the solar panel it might be designed to operate only in direct sunlight.

Davis has a fairly large solar panel so it can operate even on cloudy days, and the 24-hour FARS is quite a bit more expensive than the daytime only version.
"It's not logical... it's meteorological."

Near Hwy 1 McCallum exit; elevation 55 m (180 ft).
https://www.wunderground.com/personal-w ... =IBCABBOT1

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Abby_wx
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Re: Aspirated Weather Shields

Postby Abby_wx » Mon Jul 28, 2014 11:36 am

More information...

http://www.wxforum.net/index.php?topic=16177.0
http://www.wxforum.net/index.php?topic=20297.0

AcuRite 5n1 Aspirating fan
Rated voltage : 1.5V
No load current : <20mA


And here is some more in depth discussion: https://support.acurite.com/acurite/top ... reply-list[settings][filter_by]=all
"It's not logical... it's meteorological."

Near Hwy 1 McCallum exit; elevation 55 m (180 ft).
https://www.wunderground.com/personal-w ... =IBCABBOT1

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SardisBCwxman
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Location: Chilliwack B.C. (South Sardis) Elevation: 85 ft.

Re: Aspirated Weather Shields

Postby SardisBCwxman » Tue Jul 29, 2014 7:52 am

Abby_wx wrote:More information...

http://www.wxforum.net/index.php?topic=16177.0
http://www.wxforum.net/index.php?topic=20297.0

AcuRite 5n1 Aspirating fan
Rated voltage : 1.5V
No load current : <20mA


And here is some more in depth discussion: https://support.acurite.com/acurite/top ... reply-list[settings][filter_by]=all
I'm guessing Abby_wx it's not worth trying to modify my AcuRite 5 in 1 it was only a dream it works well except when it's in the shade the temp tends to rise at least plus 2c then falls once the sun hits the solar panel.
All l want for Christmas is a tin of sardines

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Abby_wx
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Re: Aspirated Weather Shields

Postby Abby_wx » Tue Jul 29, 2014 10:08 pm

Well, it just depends on how ambitious you are. That doesn't look like the easiest station to work on.

By the way, you asked earlier how much it cost me to replace the fan in my Davis... well, it was $1.40 including tax. I bought a hand held fan from the dollar store, disassembled it, and used the fan motor. It's a different design (smaller) but it works and it's much quieter than the Davis fan ever was. I don't know how long it'll last, but I could replace it every few months and still come out ahead of giving Davis $40 plus obscene shipping charges.
"It's not logical... it's meteorological."

Near Hwy 1 McCallum exit; elevation 55 m (180 ft).
https://www.wunderground.com/personal-w ... =IBCABBOT1

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SardisBCwxman
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Former Username: Missionbcwx
Location: Chilliwack B.C. (South Sardis) Elevation: 85 ft.

Re: Aspirated Weather Shields

Postby SardisBCwxman » Wed Jul 30, 2014 6:46 pm

Abby_wx wrote:Well, it just depends on how ambitious you are. That doesn't look like the easiest station to work on.

By the way, you asked earlier how much it cost me to replace the fan in my Davis... well, it was $1.40 including tax. I bought a hand held fan from the dollar store, disassembled it, and used the fan motor. It's a different design (smaller) but it works and it's much quieter than the Davis fan ever was. I don't know how long it'll last, but I could replace it every few months and still come out ahead of giving Davis $40 plus obscene shipping charges.
LOL! good job Abby_wx I know seems replacement piece's are costly nice work around. It seems my AcuRite is out by 2c when the fan is not running on sunny days. So I was trying to correct the problem but trying to run the fan 24 hours may be an adventure.
All l want for Christmas is a tin of sardines

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Glacier
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Location: Okanagan

Re: Aspirated Weather Shields

Postby Glacier » Wed Jul 30, 2014 9:47 pm

Just get one of those 1.21 gigawatt house fans, and shoot it at the weather station.


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